JPH018563Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a fastening device for fixing equipment near a track rail via a rail.

Conventionally, when installing the necessary equipment for detecting vehicles and moving objects running on the track rails, reliability of the fastening and ease of installation work are required as a direct fastening method to the track rails. It has been. When installing this type of equipment, for example in railways, it is a general rule that the rails are not processed, and the devices shown in FIGS. 1 and 2 have often been used for fastening fittings and rail flanges.

Figure 1 shows a device that tightens and holds a bracket 1 on a rail flange using multiple sets of bolt nuts 2 and a pusher plate 3, but with this device, the bolts may loosen or fall off due to vibrations when a train passes. Maintenance problems remain. FIG. 2 shows a device in which a bracket 4 is provided with a hook portion 5 that matches the shape of the rail flange, and is assembled with a metal fitting 6 to tighten it laterally. This device suffers from large lateral displacements due to dimensional errors in the rail flange, leaving disadvantages such as position adjustment problems and rusting.

The present invention eliminates the above-mentioned drawbacks, improves the stability of the fastening, and simplifies the installation work.
We aim to provide a metal fitting that is composed of two parts, a main metal fitting and a secondary metal fitting, that can be easily assembled from both sides of the rail, and that the pressure receiving part when fastened is determined by the protrusion, so that it is not affected by the dimensional error of the rail flange. It is something to do.

Embodiments of the present invention will be specifically described below with reference to FIGS. 3 to 7. FIG. 3 is an assembly diagram of the fastening device of the present invention, viewed from the side across the rail. FIG. 4 is an assembly diagram seen from the side of the rail. The reason why two sets are shown in the figure is due to the size of the attached equipment; one set is sufficient for small and lightweight equipment. In the figure, 11 is the main metal fitting, 12 is the secondary metal fitting, 13 is the tightening nut, 1
4 represents a corner washer, 15 represents an adjustment plate, and 16 represents a position where the equipment is placed.

FIG. 5 is a detailed view of the main metal fitting 11, including the upper plate 21 and the side plate 22, the square pipe 23 and the bolt 24.
are welded as shown in the figure. 25 is a semicircular convex part,
Three points 26 and 27 serve as pressure receiving parts. FIG. 6 is a detailed view of the secondary metal fitting 12, in which the top plate 31, the side plate 32, and the semicircular protrusion 34 are welded together as shown, and the rectangular pipe 23 can be inserted therein. 3
3 is a recess for the square washer 14, 34, 35, 3
The three points 6 serve as pressure receiving parts.

Figure 7 shows the force relationship when fastening according to the present invention.The main metal fitting receives a force of F through the bolt, and the secondary metal fitting receives a force of F' from the square washer, which acts on the side of the flange of the rail. The torque eF due to the eccentricity e of is given by g and g'
eF' becomes the force of f and f', which determines the position of each metal fitting, and g to g' are set apart, so the positional relationship of the attached equipment is not affected by dimensional errors in the thickness of the flange. Furthermore, the three pressure-receiving parts do not change even when F changes in size, making it possible to hold and fasten stably.

As detailed above, the present invention relates to the structure of a fastening device for attaching necessary equipment to any position on materials such as section steel forming railway rails and track rails without processing the materials. , the fastening device consists of a combination of a main metal fitting and a secondary metal fitting,
The rail flange is used to attach it to the rail, and the rail flange is installed so that it is sandwiched from the left and right in the longitudinal direction, and is fastened by screwing the main metal fittings. main,
Both secondary fittings have pressure receiving parts at three points, and pressure is automatically applied to the three points when the main fitting and screws are tightened to maintain a stable fastening state, and the fulcrum is located at a position that is not affected by dimensional errors in the rail flange. This is a fastening device that takes into consideration the stability of fastening and the ease of installation work.

[Brief explanation of the drawing]

Figures 1 and 2 are installation diagrams of a conventionally used fastening device, Figure 3 is an assembly diagram of the fastening device of the present invention, showing how it is installed on a rail flange, Figure 4 is a side view of Figure 3, and Figure 5 is a side view of Figure 3. The figure is a detailed view of the main metal fitting, FIG. 6 is a detailed view of the secondary metal fitting, and FIG. 7 is a correlation diagram of the forces applied to each metal fitting due to fastening.

Claims (1)

[Scope of utility model registration request] a groove portion having a protrusion that pressurizes and holds the upper surface of the rail flange and abutting the side surface of the rail flange;
A rail flange lower surface holding part having a protrusion that holds the lower surface of the rail flange under pressure, a main metal fitting that has a fixing screw part, and a groove that has a protrusion that presses and holds the upper surface of the rail flange and comes into contact with the side surface of the rail flange. , and a secondary metal fitting having a rail lower surface holding part with a protrusion that fits into the rail lower surface holding part of the main metal fitting and pressurizes and holds the lower surface of the rail flange, and one end and the other end of the rail flange are connected to the main metal fitting. A fastening device in which the main metal fitting and the secondary metal fitting are held together by the respective grooves of the secondary metal fitting, the main metal fitting and the secondary metal fitting are fitted under the rail flange, and the threaded portion of the main metal fitting protruding from the secondary metal fitting is tightened with a nut.